Complex magnetic and spatial symmetry breaking from correlations in kagome flat bands
We present the mean-field phase diagram of electrons in a kagome flat band with repulsive
interactions. In addition to flat-band ferromagnetism, the Hartree-Fock analysis yields …
interactions. In addition to flat-band ferromagnetism, the Hartree-Fock analysis yields …
Field control of symmetry-broken and quantum disordered phases in frustrated moiré bilayers with population imbalance
We determine the ground states and excitation spectra of the paradigmatic four-flavor
Heisenberg model with nearest-and next-nearest-neighbor exchange couplings on the …
Heisenberg model with nearest-and next-nearest-neighbor exchange couplings on the …